JP2010030454A - Mounting structure of piping member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a piping member capable of precisely positioning a communicating pipe without increasing manufacturing cost. <P>SOLUTION: In the mounting structure of the piping member, when a rotation regulating member 13 abuts on an abutting surface 23a of a rib 23, the other end side in a longitudinal direction of the rotation regulating member 13 is deformed in a twisting direction to one end side so as to make a width direction on the other end side in the longitudinal direction of the rotation regulating member 13 and the abutting surface 23a of the rib 23 generally orthogonal. Therefore, when the rotation regulating member 13 is pressed against the rib 23, a reaction force which the rotation regulating member 13 receives from the rib 23 coincides with the width direction at the other end side in the longitudinal direction of the rotation regulating member 13, and a force in a plate thickness direction is not applied on the other end side in the longitudinal direction of the rotation regulating member 13. Consequently, the deformation of the rotation regulating member 13 can be reduced or prevented without requiring changes of a plate thickness or a material. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a piping member mounting structure for mounting a piping member to a power steering pump, for example.

In general, as shown in FIGS. 7 and 8, this type of piping member mounting structure is provided so as to extend radially outward from the annular metal mounting portion 111 and the mounting portion 111. A piping member 110 having a metal communication pipe 112 formed; a mounting surface 121 provided on a power steering pump 120 to which a mounting portion 111 of the piping member 110 is mounted; and a mounting portion of the piping member 110 111 is inserted in the axial direction, and the mounting portion 111 of the piping member 110 is attached to the mounting surface 121 of the pump 120 such that one end surface in the axial direction is pressed against the mounting surface 121, and the axial direction of the mounting portion 111 And one surface in the thickness direction at one end in the longitudinal direction is fixed to the outer peripheral surface of the mounting portion 111 by welding. A rib that is provided with a rotation restricting member 113 and has one end in the width direction on the other end in the longitudinal direction of the rotation restricting member 113 when the attachment portion 111 of the piping member 110 is attached to the attachment surface 121 by the bolt B. There is known one that abuts on the circumferential direction of the mounting portion 111 at 122 and restricts the rotation of the piping member 110.
Japanese Patent Application Laid-Open No. 2002-178941 Japanese Patent Laid-Open No. 07-172329

  By the way, in the mounting structure, when the bolt B is tightened, the piping member 110 is rotated, and the rotation restricting member 113 is brought into contact with the rib 122 by the rotation, and the communication pipe 112 extending from the piping member 110 is used. Is positioned accurately. Further, the communication pipe 112 is made of metal, and the space in which the communication pipe 112 can be arranged in the engine room where the power steering pump 120 is provided is limited. Therefore, the communication pipe 112 can be accurately positioned. Otherwise, the communication pipe 112 may come into contact (interference) with other members or equipment in the engine room, and the other members or equipment may be damaged or damaged, and the communication pipe 112 may be damaged or damaged. There is a possibility. If the communication pipe 112 cannot be accurately positioned, a tensile force is applied to the flexible hose connected to the communication pipe 112 and the piping path of the flexible hose changes. Connection work when connecting the other end of the hose to a predetermined device is affected.

  Here, the rotation restricting member 113 is formed in a plate shape having a longitudinal direction in the axial direction of the attachment portion 111, and one surface in the thickness direction on one end side in the longitudinal direction is fixed to the outer peripheral surface of the attachment portion 111. The mounting portion 111 is not easily deformed in the circumferential direction (the width direction of the rotation restricting member 113), and is easily deformed in the radial direction of the attaching portion 111 (the plate thickness direction of the rotation restricting member 113). On the other hand, the rib 122 for contacting the rotation restricting member 113 is not designed exclusively for the contact of the rotation restricting member 113, and the contact surface 122 a with which the rotation restricting member 113 abuts is provided on the rib 122. As shown in FIG. 9A, for example, the contact surface 122a of the rib 122 may be provided to be inclined with respect to the width direction of the rotation restricting member 113, as shown in FIG. That is, as shown in FIG. 9B, when the contact surface 122a of the rib 122 is inclined with respect to the rotation regulating member 113, the bolt B is tightened to the rotation regulating member 113 in the plate thickness direction. In addition, the rotation restricting member 113 is deformed in the plate thickness direction and the communication pipe 112 of the piping member 110 cannot be accurately positioned.

  In addition, in order to prevent the deformation of the rotation restricting member 113, it has conventionally been necessary to increase the thickness of the rotation restricting member 113 or to form the rotation restricting member 113 from a high-strength steel plate, which increases the manufacturing cost. There was a problem.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a piping member mounting structure capable of accurately positioning a communication pipe without causing an increase in manufacturing cost. There is to do.

  In order to achieve the above object, the present invention is provided in a predetermined member and a piping member having an annular mounting portion and a communication pipe provided so as to extend radially outward from the mounting portion. And a mounting surface on which the mounting portion of the piping member is mounted, and a predetermined device so that the mounting portion of the piping member is inserted in the axial direction and the one end surface of the piping member is pressed against the mounting surface. In the piping member mounting structure including a bolt to be mounted on the mounting surface, the mounting portion is formed in a plate shape having a longitudinal direction in the axial direction of the mounting portion, and one thickness direction at one end in the longitudinal direction. Is fixed to the outer peripheral surface of the mounting portion, and when the mounting portion of the piping member is attached to the mounting surface with a bolt, one end in the width direction on the other end in the longitudinal direction is part of a predetermined device in the circumferential direction of the mounting portion. Piping in contact with A rotation restricting member that restricts rotation of the member in the circumferential direction of the attachment portion is provided, and when one end in the width direction on the other end side in the longitudinal direction of the rotation restricting member contacts a part of the predetermined device, the width of the rotation restricting member The other end in the longitudinal direction of the rotation restricting member with respect to the one end side is arranged so that the width direction on the other end side in the direction is arranged substantially perpendicular to the surface with which the rotation restricting member in a part of the predetermined device contacts It is deformed in the twisting direction.

  Accordingly, the rotation restricting member is formed in a plate shape having a longitudinal direction in the axial direction of the attachment portion, and one surface in the thickness direction on one end side in the longitudinal direction is fixed to the outer peripheral surface of the attachment portion. When one end in the width direction on the other end side in the longitudinal direction of the member comes into contact with a part of the predetermined device, the width direction on the other end side in the width direction of the rotation restricting member is a rotation restricting member in a part of the predetermined device. Since the other end in the longitudinal direction of the rotation restricting member is deformed in the torsional direction with respect to the one end so as to be arranged substantially perpendicular to the abutting surface, the rotation restricting member is brought into contact with a predetermined device. No force in the thickness direction is applied to the other end in the width direction.

  According to the present invention, since the force in the plate thickness direction is not applied to the other end in the width direction of the rotation restricting member due to contact with the predetermined device, the deformation of the rotation restricting member is not required without changing the plate thickness. Can be reduced or prevented, and the communication pipe of the piping member can be accurately positioned without increasing the manufacturing cost.

  1 to 5 show an embodiment of the present invention. FIG. 1 is a perspective view of a pump, piping members and bolts, FIG. 2 is a perspective view of bolts, FIG. 3 is a plan view of the pump, and FIG. FIG. 5 is a schematic view showing a balance of forces in a cross-sectional view taken along the line AA in FIG. 4.

  This embodiment shows an attachment structure of the piping member 10 in which the piping member 10 is attached to the attachment surface 21a of the pump 20 for power steering by the bolt B.

  The piping member 10 includes a metal attachment portion 11 formed in an annular shape, and a metal communication tube 12 provided so as to extend radially outward from the outer peripheral surface of the attachment portion 11. One end side of the communication pipe 12 communicates with the inner peripheral surface side of the attachment portion 11, and the other end side of the communication pipe 12 is connected to other devices in the engine room via a flexible hose.

  A rotation restricting member 13 formed in a plate shape is fixed to the outer peripheral surface of the attachment portion 11 of the piping member 10. The rotation restricting member 13 has a longitudinal direction in the axial direction of the attachment portion 11, and one surface in the thickness direction on one end side in the longitudinal direction is fixed to the outer peripheral surface of the attachment portion 11 by welding. The rotation restricting member 13 is formed by press working, and the other end in the longitudinal direction of the rotation restricting member 13 is twisted with respect to the one end during the press working (twisting direction around the axis extending in the longitudinal direction of the rotation restricting member 13). It is deformed to. In the present embodiment, the rotation restricting member 13 is fixed by welding. However, the rotation restricting member 13 can be fixed by welding and brazing, or can be fixed only by brazing. It is also possible to fix by a fixing method.

  The pump 20 has a discharge port 21 and a suction port 22 on the upper surface, and the discharge port 21 and the suction port 22 are formed in a cylindrical shape extending in the vertical direction. Further, the mounting surface 21 a is formed by the upper end surface of the discharge port 21. A rib 23 extending in the vertical direction is provided between the discharge port 21 and the suction port 22. Further, as described later, when the attachment portion 11 of the piping member 10 is attached to the attachment surface 21 a, one end in the width direction on the other end in the length direction of the rotation regulating member 13 of the piping member 10 is in contact with the rib 23. It abuts on the contact surface 23a. The contact surface 23 a is configured by one surface of the rib 23 in the circumferential direction of the discharge port 21. Further, the contact surface 23 a of the rib 23 is inclined to the other circumferential direction of the discharge port 21 toward the radially outer side of the discharge port 21.

  The bolt B is inserted through the attachment portion 11 of the piping member 10 in the axial direction and is screwed into the inner peripheral surface of the discharge port 21. Thereby, the attachment part 11 of the piping member 10 is attached to the attachment surface 21a of the pump 20 so that the one axial end surface of the attachment part 11 of the piping member 10 is pressed against the attachment surface 21a. Here, as shown in FIG. 2, a flow path H through which oil can flow is formed inside the bolt B, and the oil discharged from the discharge port 21 passes through the flow path H in the bolt B and the communication pipe 12. To be sent to other equipment in the engine room. In addition, a seal member can be appropriately interposed between the bolt B and the attachment portion 11 or between the attachment portion 11 and the attachment surface 21a.

  The mounting portion 11 of the piping member 10 configured as described above is configured such that the bolt B is placed on the inner peripheral surface of the discharge port 21 while the bolt B is inserted through the mounting portion 11 of the piping member 10 in the axial direction. By screwing and tightening the bolt B with a specified tightening torque, the bolt 20 is mounted on the mounting surface 21a of the pump 20. Further, when the bolt B is tightened, the piping member 10 is rotated with the bolt B, and the rotation restricting member 13 of the piping member 10 is brought into contact with the contact surface 23 a of the rib 23 of the pump 20 by the rotation. Abut. Further, when the rotation restricting member 13 abuts on the rib 23, the circumferential rotation of the attachment portion 11 of the piping member 10 is restricted, and the communication pipe 12 is positioned at a predetermined position.

  Here, in the present embodiment, the other end in the longitudinal direction of the rotation restricting member 13 is deformed in the twist direction with respect to the one end. Further, the other end in the longitudinal direction of the rotation restricting member 13 is twisted with respect to the one end so that the one end in the width direction on the other end in the longitudinal direction of the rotation restricting member 13 is in contact with the contact surface 23a of the rib 23 substantially perpendicularly. It is deformed in the direction. More specifically, when the rotation restricting member 13 comes into contact with the contact surface 23a of the rib 23, the width direction on the other end side in the longitudinal direction of the rotation restricting member 13 and the contact surface 23a of the rib 23 become substantially perpendicular. It is configured as follows. For this reason, as shown in FIG. 5B, after the rotation restricting member 13 contacts the rib 23, the bolt B is further tightened and the rotation restricting member 13 is pressed against the rib 23. The reaction force F received by the ribs 13 from the ribs 23 and the width direction on the other end in the longitudinal direction of the rotation restricting member 13 coincide with each other, and no force in the plate thickness direction is applied to the other end in the longitudinal direction of the rotation restricting member 13. On the other hand, when the other end in the longitudinal direction of the rotation restricting member 13 is not deformed in the twisting direction with respect to the one end, the rotation restricting member 113 is pressed against the rib 122 as shown in FIG. The force F1, F2 in the plate thickness direction is applied to the other end in the longitudinal direction of the rotation restricting member 113.

  Thus, according to this embodiment, when the bolt B is tightened and the rotation restricting member 13 is pressed against the rib 23, a force in the thickness direction is applied to the other longitudinal end of the rotation restricting member 13. Therefore, the deformation of the rotation restricting member 13 can be reduced or prevented without requiring a change in thickness or material, and positioning of the communication pipe 12 of the piping member 10 without increasing the manufacturing cost. Can be done accurately.

  Further, as shown in FIG. 5B, after the rotation restricting member 13 comes into contact with the rib 23, the bolt B is further tightened, and one end in the width direction on the other longitudinal end side of the rotation restricting member 13 is the rib 23. The reaction force F received by the rotation restricting member 13 from the rib 23 coincides with the width direction on the other end side in the longitudinal direction of the rotation restricting member 13. Here, since the width direction is the direction in which the rotation restricting member 13 is hardly deformed, the other end in the longitudinal direction of the rotation restricting member 13 when the rotation restricting member 13 comes into contact with the contact surface 23 a of the rib 23. If the other end in the longitudinal direction of the rotation restricting member 13 is deformed in the torsional direction with respect to the one end so that the abutting surface 23a of the rib 23 and the contact surface 23a of the rib 23 are substantially perpendicular to each other, This is extremely advantageous in accurately positioning the tube 12.

  In addition, in this embodiment, after forming the rotation control member 13 and the attachment part 11 separately, after fixing the rotation control member 13 to the attachment part 11, the rotation control member 13 and the attachment part 11 were shown. Can be formed integrally, and in this case as well, it is possible to achieve the same effect as described above.

  Moreover, in this embodiment, what showed the longitudinal direction other end side of the rotation control member 13 in flat form was shown. On the other hand, as shown in FIG. 6, even when the other end in the longitudinal direction of the rotation restricting member 13 is slightly curved, the rotation restricting member 13 is in contact with the contact surface 23 a of the rib 23. The other end in the longitudinal direction of the rotation restricting member 13 is deformed in a torsional direction with respect to the one end so that the width direction on the other end in the longitudinal direction of the member 13 and the contact surface 23a of the rib 23 are substantially perpendicular. Thus, it is possible to achieve the same effect as described above.

  In the present embodiment, the attachment part 11 and the communication pipe 12 of the piping member 10 are made of a metal material. However, the attachment part 11 and the communication pipe 12 are made of other materials such as a sintered material and plastic. Even when it is made of a material, it is possible to achieve the same effect as described above.

  Moreover, in this embodiment, although what showed the outer peripheral surface of the attachment part 11 of the piping member 10 so that it might become circular in cross section was shown, it is also possible to make the outer peripheral surface of the attachment part 11 into another shape. Even in this case, it is possible to provide the rotation restricting member 13 to achieve the same effect as described above.

  In this embodiment, the rotation restricting member 13 of the piping member 10 is brought into contact with the rib 23. However, the rotation restricting member 13 can be brought into contact with another portion of the pump 20. Even in this case, the rotation restricting member 13 can be configured in the same manner as described above, and the same effects as those described above can be achieved.

  In the present embodiment, the piping member 10 is attached to the power steering pump 20. However, the piping member 10 can be attached to other equipment such as an oil cooler and a brake piping. Even in this case, it is possible to achieve the same effect as described above.

The perspective view of the pump which shows one Embodiment in this invention, the member for piping, and a volt | bolt Bolt perspective view Top view of pump Front view of pump with piping members attached Schematic which shows balance of force in the AA line sectional view in FIG. FIG. 4 is a cross-sectional view taken along the line AA in FIG. 4 and a schematic diagram illustrating balance of forces. Perspective view of conventional pump, piping member and bolt Front view of pump with piping members attached BB sectional drawing in FIG. 8, and the schematic which shows balance of force

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Piping member, 11 ... Attachment part, 12 ... Communication pipe, 13 ... Rotation restriction member, 20 ... Pump, 21 ... Discharge port, 21a ... Mounting surface, 22 ... Suction port, 23 ... Rib, 23a ... Contact surface , B ... Bolt.

Claims (1)

A piping member having a ring-shaped mounting portion and a communication pipe provided so as to extend radially outward from the mounting portion, and a mounting that is provided in a predetermined device and to which the piping member mounting portion is mounted A pipe having a surface and a bolt for inserting the attachment portion of the piping member in the axial direction and attaching the attachment portion of the piping member to the attachment surface of a predetermined device so that one end surface in the axial direction is pressed against the attachment surface In the mounting structure of the members for
The attachment portion is formed in a plate shape having a longitudinal direction in the axial direction of the attachment portion, and one surface in the thickness direction on one end side in the longitudinal direction is fixed to the outer peripheral surface of the attachment portion, and the piping member is When attaching the attachment portion to the attachment surface, one end in the width direction on the other end side in the longitudinal direction abuts a part of a predetermined device in the circumferential direction of the attachment portion to restrict the rotation of the piping member in the circumferential direction of the attachment portion. Provide a rotation restricting member,
When one end in the width direction on the other end side in the longitudinal direction of the rotation restricting member abuts on a part of the predetermined device, the width direction on the other end side in the width direction of the rotation restricting member is the rotation restriction on a part of the predetermined device. The piping member mounting structure, wherein the other end in the longitudinal direction of the rotation restricting member is deformed in a twisting direction with respect to the one end so that the member is arranged substantially perpendicular to the surface with which the member abuts.

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